<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <!-- import CSS -->
  <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
  <script src="//unpkg.com/vue@2/dist/vue.js"></script>
  <script src="//unpkg.com/element-ui@2.15.14/lib/index.js"></script>
</head>
<body>
<div id="app">
    <el-upload
  class="upload-demo"
  drag
  action="https://jsonplaceholder.typicode.com/posts/"
  multiple>
  <i class="el-icon-upload"></i>
  <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
  <div class="el-upload__tip" slot="tip">只能上传jpg/png文件，且不超过500kb</div>
</el-upload>


<el-button @click="visible = true">Button</el-button>
<el-dialog :visible.sync="visible" title="Hello world">
  <p>Try Element</p>
    </el-dialog>
  </div>
</body>
  <!-- import Vue before Element -->
  <script src="https://unpkg.com/vue@2/dist/vue.js"></script>
  <!-- import JavaScript -->
  <script src="https://unpkg.com/element-ui/lib/index.js"></script>
  <script>
    new Vue({
      el: '#app',
      data: function() {
        return { visible: false }
      }
    })
  </script>
</html>